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van Viersen, Sietske; de Bree, Elise H.; Verdam, Mathilde; Krikhaar, Evelien; Maassen, Ben; van der Leij, Aryan; de Jong, Peter F. – Journal of Speech, Language, and Hearing Research, 2017
Purpose: This study aimed to gain more insight into the relation between vocabulary and reading acquisition by examining early growth trajectories in the vocabulary of children at family risk (FR) of dyslexia longitudinally. Method: The sample included 212 children from the Dutch Dyslexia Program with and without an FR. Parents reported on their…
Descriptors: Dyslexia, Vocabulary Development, Vocabulary, Delayed Speech
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Hakvoort, Britt; de Bree, Elise; van der Leij, Aryan; Maassen, Ben; van Setten, Ellie; Maurits, Natasha; van Zuijen, Titia L. – Journal of Speech, Language, and Hearing Research, 2016
Purpose: This study assessed whether a categorical speech perception (CP) deficit is associated with dyslexia or familial risk for dyslexia, by exploring a possible cascading relation from speech perception to phonology to reading and by identifying whether speech perception distinguishes familial risk (FR) children with dyslexia (FRD) from those…
Descriptors: Foreign Countries, Speech, Perception, Phonology
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van Bergen, Elsje; de Jong, Peter F.; Maassen, Ben; Krikhaar, Evelien; Plakas, Anna; van der Leij, Aryan – Journal of Learning Disabilities, 2014
Do children who go on to develop dyslexia show normal verbal and nonverbal development before reading onset? According to the aptitude-achievement discrepancy model, dyslexia is defined as a discrepancy between intelligence and reading achievement. One of the underlying assumptions is that the general cognitive development of children who fail to…
Descriptors: Children, Intelligence Quotient, Dyslexia, Young Children
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Zuijen, Titia L.; Plakas, Anna; Maassen, Ben A. M.; Maurits, Natasha M.; van der Leij, Aryan – Developmental Science, 2013
Dyslexia is heritable and associated with phonological processing deficits that can be reflected in the event-related potentials (ERPs). Here, we recorded ERPs from 2-month-old infants at risk of dyslexia and from a control group to investigate whether their auditory system processes /bAk/ and /dAk/ changes differently. The speech sounds were…
Descriptors: Infants, Dyslexia, At Risk Persons, Cognitive Processes
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van Iterson, Loretta; Augustijn, Paul B.; de Jong, Peter F.; van der Leij, Aryan – Journal of Psychoeducational Assessment, 2013
The goal of this study was to investigate reliable cognitive change in epilepsy by developing computational procedures to determine reliable change index scores (RCIs) for the Dutch Wechsler Intelligence Scales for Children. First, RCIs were calculated based on stability coefficients from a reference sample. Then, these RCIs were applied to a…
Descriptors: Foreign Countries, Epilepsy, Children, Cognitive Development
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Marinus, Eva; de Jong, Peter; van der Leij, Aryan – Scientific Studies of Reading, 2012
The present study examined whether explicit training of letter-clusters leads to more gains in word-reading speed than training of the separate letters of the same clusters. Ninety-nine poor reading second-grade children were randomly assigned to a cluster-training, a parallel letter-training, or a no-training condition. The cluster-training…
Descriptors: Reading Fluency, Reading Rate, Reading Difficulties, Reading Strategies
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van Bergen, Elsje; de Jong, Peter F.; Plakas, Anna; Maassen, Ben; van der Leij, Aryan – Journal of Child Psychology and Psychiatry, 2012
Background: The present study concerns literacy and its underlying cognitive skills in Dutch children who differ in familial risk (FR) for dyslexia. Previous studies with FR-children were inconclusive regarding the performance of FR-children without dyslexia as compared to the controls. Moreover, van Bergen et al. (2011) recently showed that…
Descriptors: Phonology, Dyslexia, Grade 2, Reading Skills
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Spilt, Jantine L.; Koomen, Helma M. Y.; Stoel, Reinoud D.; Thijs, Jochem T.; van der Leij, Aryan – Journal of Psychoeducational Assessment, 2011
The distinctiveness of physical aggression from other antisocial behavior is widely accepted but little research has explicitly focused on young children to empirically test this assumption. A Multitrait-Multimethod Matrix (MTMM) approach was employed to confirm the distinctiveness of physical aggression from nonaggressive antisocial behavior in…
Descriptors: Preschool Children, Kindergarten, Child Behavior, Questionnaires
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van Bergen, Elsje; de Jong, Peter F.; Regtvoort, Anne; Oort, Frans; van Otterloo, Sandra; van der Leij, Aryan – Dyslexia, 2011
The study concerns reading development and its precursors in a transparent orthography. Dutch children differing in family risk for dyslexia were followed from kindergarten through fifth grade. In fifth grade, at-risk dyslexic (n = 22), at-risk non-dyslexic (n = 45), and control children (n = 12) were distinguished. In kindergarten, the at-risk…
Descriptors: Dyslexia, At Risk Persons, Elementary School Students, Reading Skills
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Spilt, Jantine L.; Koomen, Helma M. Y.; Thijs, Jochem T.; Stoel, Reinoud D.; van der Leij, Aryan – Journal of Psychoeducational Assessment, 2010
A confirmatory factor analytic study was conducted to obtain evidence for physical aggression as a distinct construct of nonaggressive antisocial behavior in young children. Second, the authors investigated factorial invariance across gender. Teachers completed the Preschool Behavior Questionnaire (PBQ) for two independent samples of…
Descriptors: Aggression, Young Children, Factor Analysis, Teacher Attitudes
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Bekebrede, Judith; van der Leij, Aryan; Plakas, Anna; Share, David; Morfidi, Eleni – Scientific Studies of Reading, 2010
This study tested the phonological core deficit hypothesis among Dutch dyslexic adults and also evaluated the pattern of individual differences among dyslexics predicted by the phonological-core variable-orthographic differences (PCVOD) model (van der Leij & Morfidi, 2006) in a sample of 57 control adults and 56 dyslexic adults. It was…
Descriptors: Reading Difficulties, Reading Fluency, Educational Attainment, Scoring
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van der Leij, Aryan; Bekebrede, Judith; Kotterink, Mieke – Reading and Writing: An Interdisciplinary Journal, 2010
To investigate the effect of concurrent instruction in Dutch and English on reading acquisition in both languages, 23 pupils were selected from a school with bilingual education, and 23 from a school with education in Dutch only. The pupils had a Dutch majority language background and were comparable with regard to social-economic status (SES).…
Descriptors: Indo European Languages, English (Second Language), Bilingualism, Reading Instruction
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Scheltinga, Femke; van der Leij, Aryan; Struiksma, Chris – Journal of Learning Disabilities, 2010
The objective of this study was to investigate the contribution of rapid digit naming, phonological memory, letter sound naming, and orthographic knowledge to the prediction of responsiveness to a school-based, individual intervention of word reading fluency problems of 122 Dutch second and third graders whose reading scores were below the 10th…
Descriptors: Reading Difficulties, Intervention, Reading Fluency, Psychometrics
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Bekebrede, Judith; van der Leij, Aryan; Share, David L. – Reading and Writing: An Interdisciplinary Journal, 2009
The phonological-core variable-orthographic differences (PCVOD) model [van der Leij, & Morfidi (2006). "Journal of Learning Disabilities," 39, 74-90] has been proposed as an explanation for the heterogeneity among dyslexic readers in their profiles of reading-related subskills. The predictions of this model were investigated in a…
Descriptors: Reading Difficulties, Spelling, Silent Reading, Reading Fluency
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van Otterloo, Sandra G.; van der Leij, Aryan – Annals of Dyslexia, 2009
Children (5 and 6 years old, n = 30) at familial risk of dyslexia received a home-based intervention that focused on phoneme awareness and letter knowledge in the year prior to formal reading instruction. The children were compared to a no-training at-risk control group (n = 27), which was selected a year earlier. After training, we found a small…
Descriptors: Intervention, Phonemes, Dyslexia, Foreign Countries
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